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Description： pH 4 BUFFER SOLUTION Model : PH-04 * pH 4.00 buffer solution.
Description： pH 7 BUFFER SOLUTION Model : PH-07 * pH 7.00 buffer solution.
Description： Conductivity solution Model : CD-14 * 1.413 mS conductivity solution
Description： 33% RH HUMIDITY CALIBRATOR Model : RHA-33
Description： 75% RH HUMIDITY CALIBRATOR Model : RHA-75